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Inspect Jewelry Before Opening!All jewelry is individually packaged in clear heat sealed bags that allow for a good visual inspection of size and color. Before opening the bags, please take a good look at your jewelry and make sure it meets up with your expectations. All jewelry is guaranteed to be delivered undamaged and free of manufacturer defects. We have to assume that breakage occurred after delivery if jewelry in not sealed in the original packaging.

Product Returns/ExchangesClick here to create a return or exchange ticket.Items can be exchanged or returned for a full refund within thirty days of delivery confirmation, but only if the original heat-sealed bags remain unopened. We do not allow returns for custom anodized titanium jewelry or specially marked clearance items. Original shipping charges will not be reimbursed. Replacements for any defective or broken merchandise are always shipped free.

Lost Shipment/Non-DeliveryWe guarantee the final delivery of your order and insure all shipments. If your package isn't delivered withing ten days of shipment, we'll either refund or resend it according to the customer's preference. Insurance does not cover a delivery that's been confirmed by the USPS tracking number.

Undeliverable OrdersPlease check the shipping address when confirming your order. Our shipping labels automatically print the address exactly as you've entered it. Sometimes our postage system will flag obvious problems, but you are ultimately responsible for providing an accurate address that conforms to USPS standards. If your package is undeliverable because of an error or omission, you'll be charged for shipping it a second time. Returned orders that qualified for free shipping but are cancelled will have the original shipping charge deducted from the refund due.

International OrdersThe buyer ("importer") is responsible for any fees/taxes/duty that may accrue when a shipment clears customs.

Natural Materials/Hand Carved JewelryNatural materials like amber, bone, horn, stone, shell and wood will include minor variations in colors and pattern. We guarantee all jewelry will be made from the correct materials as advertised, but it cannot be expected to exactly match the photographs on our website. Hand carved and natural materials will never yield two pieces of jewelry that are exactly the same. Minor variances in the shape and sizing (+/-0.5mm) are considered normal for hand carved body jewelry. We do our best to match two pieces that are most alike when you purchase a pair of plugs, tunnels or earrings. Organic body jewelry should not be used for initial piercing jewelry or freshly stretched piercings.

Blackline Screw-On Sprocket Tunnels

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Product Description

These screw-on sprocket tunnels are made from blackline 316L stainless steel with external threading. These have a 5/16" wearable area between flares. The back side unscrews for easy insertion. Choose your size below.

Customer Reviews

Return & Exchange PolicyClick here to create a return or exchange ticket.All jewelry is individually packaged in clear heat sealed bags that allow for a good visual inspection of size and color. Before opening the bags, please take a good look at your jewelry and make sure it meets up with your expectations. All jewelry is guaranteed to be delivered undamaged and free of manufacturer defects. Broken or missing jewelry must be reported within seven days of delivery. Items can be exchanged or returned for refund within thirty days of delivery confirmation, but only if the original heat-sealed bags remain unopened. We do not allow returns for custom anodized titanium jewelry or specially marked clearance items. Original shipping charges will not be reimbursed, but replacements for any defective or broken merchandise are always shipped free. Refunds are issued to the original payment account and usually takes a few days for the credit to post.

Domestic Shipping ChargesSubtotal is the price after discounts are applied. All shipping options include tracking.

Order Subtotal

USPS First Class

USPS Priority Mail

up to $24.99

$2.99

$7.98

$25.00 to $59.99

FREE

$4.99

$60.00+

n/a

FREE

Domestic Transit TimeEstimates are based on orders placed before noon CST. Business days exclude Saturdays, Sundays and other holidays. Orders addressed to rural destinations or remote regions of the United States (Alaska, Hawaii, Puerto Rico, Guam, U.S. Virgin Islands) should expect longer transit times.

Delivery Service

Transit Estimate

USPS First Class

2-5 business days

USPS Priority

1-3 business days

International ShippingOur shopping cart has a shipping calculator that will provide an exact quote for your destination. The buyer ("importer") is responsible for any fees/taxes/duty that may accrue when a shipment clears customs.

Tracking Your OrderWhen your order is packaged and shipping label printed, you’ll be sent an automated email that contains a tracking number. You can track your package online at USPS.

Undeliverable OrdersPlease check the shipping address when confirming your order. Our shipping labels automatically print the address exactly as you've entered it. Sometimes our postage system will flag obvious problems, but you are ultimately responsible for providing an accurate address that conforms to USPS standards. If your package is undeliverable because of an error or omission, you'll be charged for shipping it a second time. Returned orders that qualified for free shipping but are cancelled will have the original shipping charge deducted from the refund due.